MeasureThat.net

Run results for: getElementById vs querySelector vs getElementsByClassName....

Test performance of different ways of get just one particular DOM element

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36
Chrome 75
Windows
Desktop
5 years ago
Test name Executions per second
getElementById 2299565.5 Ops/sec
getElementsByTagName 1478469.6 Ops/sec
querySelector 850291.1 Ops/sec
getElementsByClassName 1518004.0 Ops/sec
HTML Preparation code:
Script Preparation code:
Tests:

  • getElementById

  • getElementsByTagName

  • querySelector

  • getElementsByClassName